CN117638559A

CN117638559A - Electric connection device

Info

Publication number: CN117638559A
Application number: CN202210975575.XA
Authority: CN
Inventors: 陈敏; 杨旭; 严萧
Original assignee: Molex Interconnect Chengdu Co Ltd; Molex LLC
Current assignee: Molex Interconnect Chengdu Co Ltd; Molex LLC
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2024-03-01
Also published as: KR20240023492A

Abstract

An electrical connection device comprises a through connector, a first wire end connector and a second wire end connector. The through connector comprises a shell and a plurality of pins, wherein the shell is provided with a first cavity and a second cavity, and the first cavity is provided with a first independent slot and a second independent slot. The first wire end connector is configured to be independently inserted into the first independent slot and includes a first insulating housing, a first terminal position assurance member, a plurality of first terminals, and a plurality of first wires. The second terminal connector is configured to be independently inserted into the second independent slot and includes a second insulating housing, a second terminal position assurance member, a plurality of second terminals, and a plurality of second wires. Therefore, the convenience of assembling or disassembling the first line end connector and the second line end connector can be improved.

Description

Electric connection device

Technical Field

The present invention relates to an electrical connection device, and more particularly, to a through electrical connection device for penetrating a panel.

Background

The two wire end connectors of the conventional through type electric connection device are combined together in a concave-convex matching mode, and then are assembled in the through type connector at the same time. The wire harnesses to which the two wire end connectors are connected are respectively used to connect to the two modules. When the two modules are different functional modules, such as a resolver and a decelerator, and the two modules belong to two different suppliers, the assembling of the client is inconvenient. One of the reasons is that: when the two suppliers respectively provide the assembled line-end connectors and the modules to the client, the client needs to combine the two line-end connectors together before the two line-end connectors are assembled in the through-type connector. Another reason is that: if the two end connectors provided by the two suppliers are exactly the same in structure, the client cannot combine the two end connectors together and assemble the two end connectors to the through connector, so that the client needs to follow the supplier to perform adjustment and modification. Accordingly, it is an object of the present invention to provide a through-type electrical connection device that overcomes the above-described problems.

Disclosure of Invention

It is therefore an object of the present invention to provide an electrical connection device which overcomes at least one of the drawbacks of the prior art.

Thus, the electrical connection device of the present invention comprises a through connector, a first wire end connector and a second wire end connector.

The through connector comprises a shell and a plurality of pins penetrating through the shell, wherein the shell is provided with a first cavity and a second cavity, the first cavity is provided with a first independent slot and a second independent slot, and two opposite ends of each pin are respectively positioned in the first cavity and the second cavity. The first wire end connector is arranged to be independently inserted into the first independent slot of the first cavity and comprises a first insulating shell, a first terminal position assurance member arranged on the first insulating shell, a plurality of first terminals arranged on the first insulating shell and respectively electrically connected with the corresponding plurality of pins, and a plurality of first wires respectively connected with the plurality of first terminals. The second line end connector is arranged to be independently inserted into the second independent slot of the first cavity and comprises a second insulating shell, a second terminal position assurance member arranged on the second insulating shell, a plurality of second terminals arranged on the second insulating shell and respectively electrically connected with the corresponding plurality of pins, and a plurality of second wires respectively connected with the second terminals.

In some embodiments, the housing has at least one groove recessed in an outer surface thereof, and the through-type connector further includes at least one ring-shaped seal disposed in the groove.

In some embodiments, the through connector is configured to be disposed through a panel, the panel is formed with a through hole through which the housing is disposed, the through connector further includes a mounting plate formed on an outer surface of the housing and abutting against the panel, the mounting plate is formed with a mounting hole, and the mounting hole is configured to be disposed through by a fastener to fix the mounting plate to the panel.

In some embodiments, the through-type connector further comprises at least one ring-shaped sealing ring disposed on the housing, the ring-shaped sealing ring being configured to close a gap between the housing and the panel.

In some embodiments, the through-type connector further comprises a bushing disposed in the mounting hole, wherein the bushing is configured to be penetrated by the fastener.

In some embodiments, the feedthrough connector further comprises a sealant encapsulated within at least one of the first cavity and the second cavity, the sealant closing the gap between the housing and the plurality of pins.

In some embodiments, the housing has two recessed grooves formed in an outer surface thereof, and the pass-through connector includes two ring seals respectively disposed in a plurality of the recessed grooves.

In some embodiments, the housing is formed with two slots respectively connected to the first independent slot and the second independent slot, and the first insulating housing and the second insulating housing each have an elastic latch arm, where the elastic latch arm has a latch block for latching in the corresponding slot.

In some embodiments, the elastic latch arm further has an unlocking block exposed out of the housing, the unlocking block is used for being pressed to bend the elastic latch arm to enable the latch block to move away from the corresponding slot, and the unlocking block is also used for being pulled to drive the first wire end connector to move away from the first independent slot or drive the second wire end connector to move away from the second independent slot.

In some embodiments, the first terminal position assurance member and the second terminal position assurance member each have a two-stage fastening structure, the first terminal position assurance member being selectively positionable in a pre-fastening position and a final-fastening position by the two-stage fastening structure when moving in a first direction relative to the first insulating housing, the second terminal position assurance member being selectively positionable in a pre-fastening position and a final-fastening position by the two-stage fastening structure when moving in the first direction relative to the second insulating housing.

In some embodiments, the two-part fastening structure includes two oppositely disposed elastic fastening arms, each of the elastic fastening arms extending along the first direction.

In some embodiments, the first insulating case and the second insulating case each have two first stoppers and two second stoppers disposed in opposite directions, each of the first stoppers is spaced apart from the corresponding second stopper in the first direction, each of the elastic snap arms has a first snap hook and a second snap hook spaced apart in the first direction, and when the first snap hook of each of the elastic snap arms of the first terminal position assurance member and the second terminal position assurance member is snapped into the corresponding first stopper, the first terminal position assurance member and the second terminal position assurance member are positioned in the pre-snapped position, and when the second snap hook of each of the elastic snap arms of the first terminal position assurance member and the second terminal position assurance member is snapped into the corresponding second stopper, the first terminal position assurance member and the second terminal position assurance member are positioned in the final-snapped position.

In some embodiments, the first insulating housing and the second insulating housing each have two pairs of oppositely disposed guide rail groups, each pair of guide rail groups has two spaced guide rails, and each elastic buckling arm has two sliding connection strips respectively connected to a corresponding plurality of guide rails in a sliding manner along the first direction.

In some embodiments, each of the resilient snap arms has a plurality of barbs aligned in the first direction.

In some embodiments, the first insulating housing and the second insulating housing each have a plurality of stoppers, each of the stoppers has two elastic cantilevers disposed in opposite directions, each of the first insulating housing and the second insulating housing is formed with a channel having a gap between the plurality of elastic cantilevers of each of the stoppers, each of the elastic cantilevers is used for stopping the corresponding first terminal or the second terminal, each of the first terminal position assurance member and the second terminal position assurance member has a blocking plate, the blocking plate does not penetrate into the corresponding gap when the first terminal position assurance member and the second terminal position assurance member are positioned in the pre-fastening position, and the blocking plate penetrates into the corresponding gap and blocks and stops the corresponding plurality of elastic cantilevers when the first terminal position assurance member and the second terminal position assurance member are positioned in the final fastening position.

In some embodiments, the shape of the first independent slot is different from the shape of the second independent slot, the shape of the first wire end connector is different from the shape of the second wire end connector, the shape of the first wire end connector is matched with the shape of the first independent slot, and the shape of the second wire end connector is matched with the shape of the second independent slot.

In some embodiments, the first independent slot and the second independent slot each have a first guide groove portion extending along a first direction, the first guide groove portion of the first independent slot and the first guide groove portion of the second independent slot are spaced apart from each other or are spaced apart from each other in a second direction perpendicular to the first direction, the first insulating shell and the second insulating shell each have a first slider extending along the first direction, the first slider of the first insulating shell is located corresponding to the first guide groove portion of the first independent slot, the first slider of the first insulating shell is slidably connected to the first guide groove portion of the first independent slot, and the first slider of the second insulating shell is located corresponding to the first guide groove portion of the second independent slot.

In some embodiments, the first independent slot and the second independent slot each further have two second guide groove portions spaced apart along the second direction, each of the second guide groove portions extends along the first direction, the first guide groove portion and the plurality of second guide groove portions are spaced apart along a third direction perpendicular to the first direction and the second direction, the first insulating shell and the second insulating shell each have two second sliders, positions of the plurality of second sliders of the first insulating shell correspond to positions of the plurality of second guide groove portions of the first independent slot respectively, the plurality of second sliders of the first insulating shell are slidably connected to the plurality of second guide groove portions of the first independent slot respectively, positions of the plurality of second sliders of the second insulating shell correspond to positions of the plurality of second guide groove portions of the second independent slot respectively, and the plurality of second sliders of the second insulating shell are slidably connected to the plurality of second guide groove portions of the second independent slot respectively.

The through type connector is provided with a first independent slot and a second independent slot. The first wire end connector is arranged to be independently inserted into the first independent slot and electrically connected with the through connector. The second line end connector is arranged to be independently inserted into the second independent slot and electrically connected with the through connector.

The invention has at least the following effects: the first wire end connector can be independently inserted into the first independent slot of the first cavity, and the second wire end connector can be independently inserted into the second independent slot of the first cavity, so that convenience in assembling or disassembling the first wire end connector and the second wire end connector on or from the through type connector can be improved.

Drawings

Other features and advantages of the invention will be apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a first embodiment of the electrical connection device of the present invention assembled to a panel;

FIG. 2 is an exploded perspective view of the first embodiment and the faceplate;

FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1;

FIG. 4 is an exploded perspective view of the first embodiment illustrating the assembled relationship between a through-type connector, a first wire end connector, and a second wire end connector;

FIG. 5 is an exploded perspective view of the first embodiment;

FIG. 6 is an exploded perspective view of the first embodiment from another perspective;

fig. 7 is a perspective view of a housing of the pass-through connector of the first embodiment;

FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 2;

fig. 9 is a front view of the first embodiment;

FIG. 10 is an enlarged view of a portion of FIG. 5;

FIG. 11 is an enlarged view of a portion of FIG. 6;

FIG. 12 is a cross-sectional view of the first wire end connector of the first embodiment illustrating a first terminal position assurance member positioned in a pre-snap-fit position;

FIG. 13 is a cross-sectional view of the first wire end connector of the first embodiment illustrating the first terminal position assurance member positioned in a final snap-fit position;

fig. 14 is a side view of the first embodiment; and

Fig. 15 is a perspective view of the through connector of the second embodiment of the electrical connection device of the present invention.

The reference numerals are as follows:

100 electrical connection device

1 through type connector

11 casing

110 dividing wall

111 first peripheral wall

112 second peripheral wall

113 perforation

114 first chamber

115 second cavity

116 filling groove

117 first independent slot

118 second independent slot

119 first guide groove part

120 first guide groove part

121 second guide groove part

122 a second guide groove part

123 ring groove

124 clamping groove

13 mounting plate

131 mounting hole

14 contact pin

15 annular seal ring

16 sealant

17 bushing

2 first line end connector

2': second wire end connector

21 first insulating shell

21': second insulating shell

210 casing body

211 guide rail set

212 first slider

213 second slide block

214 first stop block

215 second stop block

216 elastic clamping arm

217 terminal accommodating groove set

218 terminal accommodation groove

219 stop member

220 elastic cantilever

221 channel

2211 first gap

2212 second gap

222 guide rail

223 guide groove

224, catch block

225 unlocking block

23 first terminal position assurance member

23': second terminal position assurance member

230 cover cap

231 baffle plate

232 two-section fastening structure

233 through hole

234 elastic buckling arm

235 arm body

236 first clasp

237 second clasp

238 slip joint strip

239 first hook

240 second hook portion

241 barb

25 first terminal

25': second terminal

26 first wire

26': second wire

3 Panel

30 inner peripheral surface

31 through hole

32 joint hole

4 fastening piece

D1 first direction

D2, second direction

D3 third direction

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are denoted by the same reference numerals.

Referring to fig. 1, 2, 3 and 4, a first embodiment of the electrical connection device 100 of the present invention includes a through connector 1, a first wire end connector 2, and a second wire end connector 2'. The through connector 1 of the electrical connection device 100 is adapted to be assembled to a panel 3, the through connector 1 being fixable to the panel 3 by two fasteners 4.

For convenience of description, a first direction D1 of the electrical connection device 100, a second direction D2 perpendicular to the first direction D1, and a third direction D3 perpendicular to the first direction D1 and the second direction D2 are defined. In the first embodiment, the first direction D1 is exemplified as the front-rear direction, and the direction indicated by the arrow in fig. 1 is the front and the reverse direction is the rear. The second direction D2 is exemplified by the left-right direction, and the direction indicated by the arrow in fig. 1 is left and the reverse direction is right. The third direction D3 is, for example, the up-down direction, and the direction indicated by the arrow in fig. 1 is up and down in the opposite direction.

The panel 3 is exemplified by, but not limited to, a cylinder of a machine. The machine device is, for example, an engine or a transmission, and the cylinder is used to cover and protect the internal components of the machine device. The panel 3 is formed with a through hole 31 extending along the first direction D1 for the through connector 1 to pass through, and two engaging holes 32 spaced apart along the second direction D2 and located at left and right sides of the through hole 31. The through hole 31 is defined by an inner peripheral surface 30 of the panel 3. The plurality of engagement holes 32 are respectively used for the plurality of fasteners 4 to engage. In the first embodiment, each of the engagement holes 32 is exemplified by a screw hole, and each of the fasteners 4 is exemplified by a screw for screwing to the corresponding engagement hole 32.

Referring to fig. 3, 5, 6 and 7, the through-type connector 1 includes a housing 11, a mounting plate 13, a plurality of pins 14, an annular seal 15, a sealant 16, and two bushings 17. The housing 11 is configured to be inserted through the through hole 31 of the panel 3. The housing 11 has a partition wall 110, a first peripheral wall 111, and a second peripheral wall 112. The partition wall 110 is formed with a plurality of spaced through holes 113 extending along the first direction D1, and the through holes 113 are respectively used for the plurality of pins 14 to pass through. The first peripheral wall 111 is connected to the partition wall 110 and defines a first chamber 114 communicating with the rear ends of the plurality of through holes 113 together with the partition wall 110. The second peripheral wall 112 is connected to the partition wall 110 and located at the front side of the first peripheral wall 111, and the second peripheral wall 112 and the partition wall 110 define a second cavity 115 together, and the second cavity 115 has a filling slot 116 communicating with the front ends of the plurality of through holes 113.

Referring to fig. 4, 5, 7 and 8, the first cavity 114 has a first independent slot 117 and a second independent slot 118 aligned along the second direction D2. The first independent slot 117 communicates with a portion of the plurality of through holes 113, and the second independent slot 118 communicates with the remaining portion of the plurality of through holes 113. In the first embodiment, the shape of the first independent slot 117 is different from the shape of the second independent slot 118. Specifically, the first independent slot 117 and the second independent slot 118 each have a first guiding slot 119 and 120 adjacent to the bottom of the first peripheral wall 111, and two second guiding slot 121 and 122 spaced along the second direction D2 and adjacent to the top of the first peripheral wall 111. Each of the first guide groove portions 119, 120 has a long groove shape and extends in the first direction D1. The first guiding groove 119 of the first independent slot 117 and the first guiding groove 120 of the second independent slot 118 are spaced close to each other or spaced apart from each other along the second direction D2. The first guide groove portions 119 and 120 of the first embodiment are spaced apart from each other along the second direction D2, but not limited thereto, and the first guide groove portions 119 and 120 may be spaced apart from each other along the second direction D2 as required. Each of the second guide groove portions 121, 122 has a long groove shape and extends in the first direction D1. One of the second guide groove portions 121 and one of the second guide groove portions 122 are spaced apart from each other in the second direction D2 close to each other, and are respectively spaced above the plurality of first guide groove portions 119, 120 in the third direction D3. The other second guiding groove 121 and the other second guiding groove 122 are spaced apart from each other along the second direction D2.

The first guiding groove 119 and the second guiding groove 121 of the first independent slot 117 can provide an alignment effect before the first wire end connector 2 is inserted and a guiding sliding effect during the insertion process. The first guiding groove 120 and the second guiding groove 122 of the second independent slot 118 can provide alignment effect before the second wire end connector 2' is inserted and guiding sliding effect during the inserting process.

Referring to fig. 3, 5 and 6, an annular groove 123 is concavely formed on the outer surface of the first peripheral wall 111 of the housing 11, and the annular groove 123 is used for accommodating the annular sealing ring 15. The first peripheral wall 111 of the housing 11 further forms two slots 124 spaced apart along the second direction D2, and the slots 124 are respectively connected to the first independent slot 117 and the second independent slot 118, and the slots 124 are respectively used for locking the first wire end connector 2 and the second wire end connector 2'.

The mounting plate 13 is integrally formed on the outer surface of the partition wall 110 of the housing 11, and is used for abutting against the panel 3. The mounting plate 13 is formed with two mounting holes 131 spaced apart in the second direction D2. The mounting holes 131 can be communicated with the engaging holes 32 of the panel 3, and the mounting holes 131 are respectively used for accommodating the bushings 17 and respectively used for penetrating the fasteners 4.

Referring to fig. 3, 5 and 7, each of the pins 14 is a conductive terminal made of metal material. Each pin 14 is disposed through the corresponding through hole 113 of the housing 11, so that opposite ends of each pin 14 can be located in the first cavity 114 and the second cavity 115, respectively.

Referring to fig. 3, 5 and 6, the ring-shaped sealing ring 15 is made of elastic material such as silica gel or rubber, and the ring-shaped sealing ring 15 is disposed in the ring groove 123 of the housing 11 for abutting against the inner peripheral surface 30 of the panel 3 to close the gap between the first peripheral wall 111 of the housing 11 and the panel 3.

Referring to fig. 3 and 9, the sealant 16 is encapsulated in at least one of the first cavity 114 and the second cavity 115 of the housing 11 to seal the gaps between the housing 11 and the plurality of pins 14. In the first embodiment, the sealant 16 is filled in the filling groove 116 of the second cavity 115 of the housing 11, but not limited to this, the sealant 16 may be filled in the first cavity 114 only, or the sealant 16 may be filled in the filling groove 116 of the second cavity 115 and the first cavity 114 at the same time, according to the requirement.

Referring to fig. 3, 5 and 6, each of the bushings 17 is made of metal material and is disposed in the corresponding mounting hole 131 of the mounting plate 13. Each of the bushings 17 is configured to be penetrated by a corresponding fastener 4.

Referring to fig. 3, 4 and 9, to manufacture the through-type connector 1, a plurality of pins 14 and a plurality of bushings 17 are first placed in a mold (not shown). Subsequently, the housing 11 and the mounting plate 13 are molded, for example, by over molding, so that the housing 11 and the mounting plate 13 are respectively covered with the plurality of pins 14 and the plurality of bushings 17. Next, the annular sealing ring 15 is sleeved on the first peripheral wall 111 of the housing 11 and is accommodated in the annular groove 123. Then, the sealant 16 is encapsulated in the filling groove 116 of the second cavity 115 of the housing 11, so that the sealant 16 covers each of the pins 14 to close the gaps between the housing 11 and the pins 14, thereby completing the manufacture of the through-type connector 1. The sealing glue 16 seals the gaps between the housing 11 and the plurality of pins 14, so that the sealing glue 16 has a good sealing effect, and prevents the leakage of water or oil and other liquids through the gaps between the housing 11 and the plurality of pins 14 from affecting the internal components covered by the panel 3.

Referring to fig. 2 and 3, when the through connector 1 is to be assembled to the panel 3, the first peripheral wall 111 of the housing 11 is first inserted into the through hole 31. The ring-shaped sealing ring 15 is pressed and deformed when contacting the inner peripheral surface 30, so that the ring-shaped sealing ring 15 can tightly and tightly contact the first peripheral wall 111 and the inner peripheral surface 30 to close the gap between the first peripheral wall 111 and the inner peripheral surface 30. When the mounting plate 13 abuts against and is blocked by a surface of the panel 3, the through-type connector 1 cannot be moved any more, and the bushings 17 correspond to the positions of the engaging holes 32, respectively. Then, each fastener 4 is inserted through and abutted against the corresponding bushing 17 and screwed to the corresponding engagement hole 32, so that the mounting plate 13 is locked to the panel 3, and the through connector 1 is fixed to the panel 3. The annular sealing ring 15 seals the gap between the first peripheral wall 111 of the housing 11 and the inner peripheral surface 30 of the panel 3, so that the annular sealing ring 15 can have a good sealing effect, so as to prevent water or oil from leaking through the gap between the first peripheral wall 111 of the housing 11 and the inner peripheral surface 30 of the panel 3 to affect the internal components covered by the panel 3. In addition, since the plurality of bushings 17 are provided in the plurality of mounting holes 131 of the mounting plate 13, respectively, the structural strength of the mounting plate 13 can be increased, and the fastening member 4 can be prevented from contacting and rubbing the mounting plate 13 to damage the mounting plate 13.

It should be noted that the number of the plurality of engaging holes 32, the number of the plurality of mounting holes 131, the number of the plurality of bushings 17 and the number of the plurality of fasteners 4 in the first embodiment may be set to one according to the requirements, and are not limited to two.

Referring to fig. 4, 5 and 6, the first line end connector 2 is a separate connector configured to be independently inserted into the first separate slot 117 of the first cavity 114. The first wire end connector 2 includes a first insulating housing 21, a first Terminal Position Assurance (TPA) member 23, a plurality of first terminals 25, and a plurality of first wires 26.

Referring to fig. 8, 10, 11, 12 and 13, the first insulating housing 21 has a housing 210, two pairs of guide rail sets 211, a first slider 212, two second sliders 213, two first stoppers 214, two second stoppers 215, and a resilient latch arm 216. The housing 210 is formed with a plurality of terminal receiving groove groups 217 aligned along the second direction D2, and each of the terminal receiving groove groups 217 has two terminal receiving grooves 218 spaced apart along the third direction D3. Each of the terminal receiving grooves 218 is configured to receive a corresponding one of the first terminals 25. The housing 210 has a plurality of stoppers 219 aligned in the second direction D2. Each of the stoppers 219 has two elastic cantilevers 220 disposed opposite to each other along the third direction D3, and each of the elastic cantilevers 220 extends into the corresponding terminal receiving groove 218 to stop the corresponding first terminal 25, so as to prevent the first terminal 25 from moving backward along the first direction D1 and away from the corresponding terminal receiving groove 218. The housing 210 is also formed with a channel 221. The channel 221 has a first gap 2211 between the plurality of terminal receiving slots 218 of each of the terminal receiving slot sets 217 and a second gap 2212 between the plurality of resilient arms 220 of each of the stops 219.

The two pairs of guide rail sets 211 are disposed at the top and bottom ends of the housing 210 along the third direction D3. Each pair of guide rail sets 211 has two guide rails 222 spaced apart along the second direction D2 and respectively adjacent to the left and right sides of the housing 210, and a guide groove 223 extending along the first direction D1 is concavely formed on the inner side of each guide rail 222.

The first slider 212 is protruded from the bottom end of the guide rail set 211 on the lower side, which is located on the right side and is adjacent to the right side of the housing 210. The first slider 212 has a long block shape and extends along the first direction D1, and is slidably connected to the first guide groove 119 of the first independent slot 117. The second sliders 213 are respectively protruded from top ends of the guide rails 222 of the guide rail set 211 on the upper side and are respectively adjacent to the left and right sides of the housing 210. The corresponding second slider 213 on the right side is spaced above the first slider 212 along the third direction D3. Each of the second sliders 213 has a long block shape and extends along the first direction D1, and is configured to be slidably connected to the corresponding second guide groove portion 121 of the first independent slot 117.

The first stoppers 214 are disposed at the top and bottom ends of the housing 210 and adjacent to the front end of the housing 210 along the third direction D3. The plurality of second stoppers 215 are disposed reversely along the third direction D3. The second block 215 is connected to the bottom end of the corresponding guide rail 222 and the inner side of the first slider 212, and the second block 215 is spaced from the bottom end of the housing 210 and is adjacent to the rear end of the housing 210. The second stoppers 215 on the upper side are connected to the inner sides of the plurality of second sliders 213, and the second stoppers 215 are spaced apart from the top end of the housing 210 and are adjacent to the rear end of the housing 210. Each first block 214 is spaced apart from the corresponding second block 215 along the first direction D1.

Referring to fig. 3, 10, 11 and 14, the elastic latch arm 216 is integrally connected to the left side of the housing 210 and has a latch block 224 and two unlocking blocks 225 spaced apart along the first direction D1. The locking block 224 is used to lock in the corresponding locking slot 124 of the housing 11, so that the first wire end connector 2 is in a locking state relative to the through connector 1. The unlocking blocks 225 are spaced apart along the third direction D3 and are located at the rear side of the locking block 224, and the unlocking blocks 225 are used for being pressed by a finger of a user to bend the elastic locking arm 216 so as to urge the locking block 224 to move away from the corresponding locking slot 124, so that the first line-end connector 2 is switched from the locking state to an unlocking state. In addition, the unlocking blocks 225 are further used for being pulled backwards by the finger of the user to drive the first wire end connector 2 in the unlocked state to move backwards and away from the first independent slot 117. Through the design mode that a plurality of unlocking blocks 225 are two in number, a larger pressing area can be provided for pressing the fingers of a user, and a larger pulling area can be provided for pulling the fingers of the user, so that convenience in use and operation can be improved. It should be noted that the number of the unlocking blocks 225 may be one according to requirements, and is not limited thereto.

Referring to fig. 10, 11, 12 and 13, the first terminal position assurance member 23 has a cover 230, a barrier 231, and a two-stage snap-fit structure 232. The cover 230 is used to cover the front end of the housing 210 of the first insulating housing 21. The cover 230 is formed with a plurality of through holes 233 respectively communicating with the plurality of terminal accommodating grooves 218, and each through hole 233 is configured to allow the corresponding pin 14 (as shown in fig. 6) to pass through, so that the pin 14 can be inserted into the corresponding terminal accommodating groove 218 through the corresponding through hole 233 and connected to the corresponding first terminal 25. The blocking plate 231 is formed in the cover 230, and the blocking plate 231 is configured to extend into the channel 221 of the first insulating housing 21 to block the plurality of elastic cantilever arms 220 of each of the blocking members 219. The two-stage fastening structure 232 is disposed on the cover 230 and can be fastened to the first insulating housing 21 by a two-stage fastening method. Thus, the first terminal position assurance member 23 can be selectively positioned at a pre-fastening position (as shown in fig. 12) and a final-fastening position (as shown in fig. 13) by the two-stage fastening structure 232 when moving along the first direction D1 relative to the first insulating housing 21.

Specifically, the two-stage fastening structure 232 includes two elastic fastening arms 234 disposed opposite to the top and bottom sides of the cover 230 along the third direction D3. Each of the resilient arms 234 extends in the first direction D1 and has an arm 235, a first clasp 236, and a second clasp 237. The arm 235 is connected to the housing 230 and has two sliding strips 238 spaced apart along the second direction D2, and each sliding strip 238 is configured to be slidably connected to the corresponding guide slot 223 of the guide rail 222 along the first direction D1. By the engagement of each of the sliding connection strips 238 with the corresponding guide groove 223, the moving direction of the first terminal position assurance member 23 can be guided so as to smoothly move to the pre-fastening position or the final-fastening position. The first clasp 236 is positioned within a slot formed by the arm 235. The front end of the first hook 236 is connected to the arm 235, and the first hook 236 has a first hook 239 facing the barrier 231 adjacent to the rear end, and the first hook 239 is configured to be snapped onto the corresponding first stop 214 to position the first terminal position assurance member 23 in the pre-snap position. The second clasp 237 extends rearward from the rear end of the arm 235 and is spaced apart from the rear side of the first clasp 236 in the first direction D1. The second clasp 237 has a second hook 240 adjacent the rear end facing the opposite side of the barrier 231, the second hook 240 being adapted to snap over the corresponding second stop 215 to position the first terminal position assurance member 23 in the final snap-fit position. The second clasp 237 has a plurality of barbs 241 aligned in the first direction D1 on a side opposite the barrier 231 and positioned between the first clasp 236 and the second clasp portion 240.

Each of the first terminals 25 is configured to be received in the corresponding terminal receiving groove 218, and each of the first terminals 25 is configured to be electrically connected to the corresponding pin 14 (as shown in fig. 6). Each of the first conductive wires 26 is connected to the corresponding first terminal 25.

When assembling the component parts of the first wire end connector 2, any one of the elastic latching arms 234 is aligned with the corresponding pair of the guide rail groups 211 of the first insulating housing 21. Then, the first terminal position assurance member 23 is moved backward along the first direction D1, so that each of the sliding connection strips 238 is slidably connected in the guide groove 223 of the corresponding guide rail 222. At this time, the barrier 231 extends into the first gap 2211 of the passage 221. Since the plurality of elastic buckling arms 234 of the two-stage buckling structure 232 are reversely arranged along the third direction D3 to form a symmetrical structure, only one pair of the guide rail sets 211 of the first insulating housing 21 is required to align any one of the elastic buckling arms 234, so that subsequent assembling operations can be performed, and thus, convenience in assembling the first terminal position assurance member 23 to the first insulating housing 21 can be improved.

During the backward movement of each elastic buckling arm 234 along the first direction D1, when the first hook portion 239 of the first buckle 236 of each elastic buckling arm 234 touches the corresponding first stop 214, the first buckle 236 is deformed by being spread outwards and stores elastic force. When the first hook portion 239 of the first clasp 236 passes over the corresponding first stopper 214, the first clasp 236 is reset by the accumulated elastic force to automatically snap the first hook portion 239 to the corresponding first stopper 214, so that the first terminal position assurance member 23 is positioned at the pre-snap position. At this time, the barrier 231 does not extend into the second gap 2212 of the passage 221.

When the first terminal position assurance member 23 is positioned at the pre-fastening position, each of the first terminals 25 is advanced from the rear side of the first insulating housing 21 along the first direction D1 and inserted into the corresponding terminal receiving groove 218. When the first terminal 25 touches the corresponding elastic cantilever 220 during the forward movement, the elastic cantilever 220 is spread to deform and retract into the second gap 2212. When the first terminal 25 is moved to the position shown in fig. 12, it is not moved forward any more, and at this time, the elastic cantilever 220 is restored by elastic force accumulated during deformation to automatically block the first terminal 25 to prevent rearward movement thereof.

After the first terminals 25 are assembled, the second hook 237 of each elastic latch 234 is pressed to deform and store elastic force, so that the second hook 240 of the second hook 237 avoids the corresponding second stop 215. Then, the first terminal position assurance member 23 is moved backward along the first direction D1, so that the second hook 240 moves along the inner side of the corresponding second stopper 215. When the second hook 240 of the second clasp 237 passes over the corresponding second stop 215, the second clasp 237 returns by the accumulated elastic force to automatically snap the second hook 240 to the corresponding second stop 215, so that the first terminal position assurance member 23 is positioned at the final snap-fit position. At this time, the blocking plate 231 extends into the second gap 2212 of the channel 221 and blocks the plurality of elastic cantilevers 220. Thus, the blocking plate 231 can prevent any one of the elastic cantilever arms 220 from moving and moving away from the corresponding first terminal 25 due to vibration or other factors, so as to ensure that the plurality of first terminals 25 can be stably positioned in the plurality of terminal accommodating grooves 218.

When the first terminal 25 is to be pulled out of the corresponding terminal accommodating groove 218, the plurality of barbs 241 of the second clasp 237 of each elastic buckling arm 234 are pressed, so that the second clasp 237 is deformed and stored with elastic force, and the second hook 240 is moved away from the corresponding second stop 215. Then, the force pulls the barbs 241 of the second clasp 237 forward along the first direction D1 to return the first terminal position assurance member 23 to the pre-snap position, and the barrier 231 moves away from the second gap 2212 of the channel 221. At this time, after the user pushes the corresponding elastic cantilever 220 to move away from the position of the corresponding first terminal 25, the user pulls the first terminal 25 back to move away from the corresponding terminal accommodating groove 218. Through the design of the plurality of barbs 241 of the second clasp 237, the friction force of the user's finger in contact can be increased, so that the user can conveniently and rapidly pull the first terminal position assurance member 23 forward, and the convenience in operation can be improved.

Referring to fig. 4, 5 and 6, the second wire end connector 2 'is a separate connector, and the shape of the second wire end connector 2' is different from the shape of the first wire end connector 2. The second line end connector 2' is configured to be independently inserted into the second independent slot 118 of the first cavity 114. The second wire end connector 2 'has a structure similar to that of the first wire end connector 2 and includes a second insulating housing 21', a second terminal position assurance member 23 'disposed on the second insulating housing 21', a plurality of second terminals 25 'disposed on the second insulating housing 21' for respectively electrically connecting the corresponding plurality of pins 14, and a plurality of second wires 26 'respectively connected to the second terminals 25'. Since the second wire end connector 2 'has only the structure of the second insulating housing 21' different from that of the first insulating housing 21 of the first wire end connector 2, the second terminal position assurance member 23', the plurality of second terminals 25' and the plurality of second wires 26 'of the second wire end connector 2' are respectively identical to those of the first terminal position assurance member 23, the plurality of first terminals 25 and the plurality of first wires 26 of the first wire end connector 2, and the assembly manner between the constituent members of the second wire end connector 2 'is also identical to that between the constituent members of the first wire end connector 2, only the difference between the second insulating housing 21' and the first insulating housing 21 will be described below.

Referring to fig. 8, 10 and 11, the second insulating housing 21' also has a housing 210, two pairs of guide rail sets 211, a first slider 212, two second sliders 213, two first stoppers 214, two second stoppers 215, and an elastic latching arm 216. One of the differences between the second insulating case 21' and the first insulating case 21 is that the first slider 212 is disposed at a different position. The first slider 212 of the second insulating housing 21' is protruded from the bottom end of the left guide rail 222 of the lower guide rail set 211 and is adjacent to the left side of the housing 210, and the first slider 212 is slidably connected to the first guide groove 120 of the second independent slot 118. Another difference between the second insulating housing 21' and the first insulating housing 21 is that the elastic latching arms 216 are disposed at different positions. The elastic latching arm 216 of the second insulating housing 21' is integrally connected to the right side of the housing 210.

Referring to fig. 3, 4 and 8, when the first wire end connector 2 is to be assembled to the through connector 1, the first slider 212 and the second sliders 213 of the first wire end connector 2 are aligned with the first guide groove 119 and the second guide groove 121 of the first independent slot 117, respectively. Then, the first wire end connector 2 is moved forward along the first direction D1, so that the first slider 212 and the second sliders 213 respectively extend into the first guide groove 119 and the second guide groove 121, and slide along the first guide groove 119 and the second guide groove 121 respectively. When the locking block 224 of the elastic locking arm 216 touches the inner edge of the first peripheral wall 111 of the housing 11, the elastic locking arm 216 is pressed by the first peripheral wall 111 to bend and deform inwards and accumulate elastic force. When the locking block 224 of the elastic locking arm 216 moves to a position aligned with the corresponding locking slot 124, the elastic locking arm 216 returns by accumulated elastic force to automatically lock the locking block 224 to the corresponding locking slot 124, so that the first wire end connector 2 is locked to the locking state of the through connector 1. At this time, the corresponding pins 14 of the through connector 1 are respectively inserted into the through holes 233 (as shown in fig. 11) of the first wire end connector 2 and are respectively electrically connected to the first terminals 25. The first slider 212 and the second sliders 213 are respectively embedded in the first guide groove 119 and the second guide groove 121, so that the first wire end connector 2 is prevented from swinging along the second direction D2 or the third direction D3, and the first wire end connector 2 can be stably positioned in the first independent slot 117.

When the second wire end connector 2 'is to be assembled to the through connector 1, the first slider 212 and the second sliders 213 of the second wire end connector 2' are aligned with the first guide groove 120 and the second guide groove 122 of the second independent slot 118, respectively. Then, the second wire end connector 2' is moved forward along the first direction D1, so that the first slider 212 and the second sliders 213 respectively extend into the first guide groove 120 and the second guide groove 122, and respectively slide along the first guide groove 120 and the second guide groove 122. When the locking block 224 of the elastic locking arm 216 touches the inner edge of the first peripheral wall 111 of the housing 11, the elastic locking arm 216 is pressed by the first peripheral wall 111 to bend and deform inwards and accumulate elastic force. When the locking block 224 of the elastic locking arm 216 moves to a position aligned with the corresponding locking slot 124, the elastic locking arm 216 returns by accumulated elastic force to automatically lock the locking block 224 to the corresponding locking slot 124, so that the second wire end connector 2' is locked to the locking state of the through connector 1. At this time, the corresponding pins 14 of the through-type connector 1 are respectively inserted into the through holes 233 (as shown in fig. 11) of the second wire end connector 2 'and are respectively electrically connected to the second terminals 25'. The first slider 212 and the second sliders 213 are respectively engaged with the first guide groove 120 and the second guide groove 122, so that the second wire end connector 2 'is prevented from swinging along the second direction D2 or the third direction D3, and the second wire end connector 2' can be stably positioned in the second independent slot 118.

The shape of the first independent slot 117 is different from the shape of the second independent slot 118 by the position design of the first guide slot portion 119 and the plurality of second guide slot portions 121 of the first independent slot 117 and the position design of the first guide slot portion 120 and the plurality of second guide slot portions 122 of the second independent slot 118. The shape of the first wire end connector 2 is different from the shape of the second wire end connector 2 'by the position design of the first slider 212 and the plurality of second sliders 213 of the first insulating housing 21 and the position design of the first slider 212 and the plurality of second sliders 213 of the second insulating housing 21'. The positions of the first slider 212 and the plurality of second sliders 213 of the first wire end connector 2 correspond to the positions of the first guiding groove portion 119 and the plurality of second guiding groove portions 121 of the first independent slot 117, respectively, so that the shape of the first wire end connector 2 is matched with the shape of the first independent slot 117, so as to limit that the first wire end connector 2 can only be inserted into the first independent slot 117. The positions of the first slider 212 and the plurality of second sliders 213 of the second wire-end connector 2' respectively correspond to the positions of the first guiding groove 120 and the plurality of second guiding groove 122 of the second independent slot 118, so that the shape of the second wire-end connector 2' is matched with the shape of the second independent slot 118, so as to limit that the second wire-end connector 2' can only be inserted into the second independent slot 118.

Through the fool-proof structural design, the assembly information of the user before assembling the first wire end connector 2 or the second wire end connector 2 'is provided, so that the user can be prevented from misplacing the first wire end connector 2 in the first independent slot 117 or the second independent slot 118 or misplacing the second wire end connector 2' in the second independent slot 118 or the first independent slot 117. Therefore, the user can conveniently and rapidly insert the wire end connector into the correct independent slot in the correct direction.

It should be noted that, the electrical connection device 100 of the first embodiment may also omit the second guiding groove portions 121 and 122 of the first independent slot 117 and the second independent slot 118 and omit the second sliding blocks 213 of the first wire end connector 2 and the second wire end connector 2' according to requirements. Thus, a foolproof structure can be provided as well.

When the first wire end connector 2 or the second wire end connector 2 'is to be detached from the through connector 1, a user first presses the unlocking blocks 225 of the elastic locking arms 216 of the first wire end connector 2 or the second wire end connector 2' by applying force by a finger, so that the elastic locking arms 216 are bent and the locking blocks 224 are moved away from the corresponding locking grooves 124. Then, the user pulls the unlocking blocks 225 of the elastic latching arm 216 of the first wire end connector 2 or the second wire end connector 2 'by finger force to move backward along the first direction D1, so as to separate the first wire end connector 2 or the second wire end connector 2' from the through connector 1.

In application, since the first line-end connector 2 and the second line-end connector 2 'are independent connectors, two different suppliers can purchase the first line-end connector 2 and the second line-end connector 2' for use. Each provider provides the first wire end connector 2 or the second wire end connector 2 'to the client after the first wire end connector 2 or the second wire end connector 2' and the module are assembled in advance, the client can use the first wire end connector 2 or the second wire end connector 2 'by only being inserted into the through type connector 1, and the first wire end connector 2 and the second wire end connector 2' can be inserted into the through type connector 1 after being combined together. Therefore, convenience of the client side in assembly can be improved. In addition, when the client only needs to use one module, the provider only needs to provide one line-end connector and one module, so that the purchase cost of the line-end connector is saved.

Referring to fig. 15, a second embodiment of the electrical connection device 100 of the present invention has the same overall structure as the first embodiment, except for the through-type connector 1.

The outer surface of the first peripheral wall 111 of the housing 11 of the through-type connector 1 is concavely formed with two spaced ring grooves 123. The through-type connector 1 includes two ring seals 15 provided in a plurality of ring grooves 123, respectively. Thereby, the sealing effect of closing the gap between the housing 11 and the panel 3 (shown in fig. 3) can be further enhanced.

In summary, in the electrical connection device 100 of each embodiment, the first wire end connector 2 can be independently inserted into the first independent slot 117 of the first cavity 114, and the second wire end connector 2 'can be independently inserted into the second independent slot 118 of the first cavity 114, so that the convenience of assembling the first wire end connector 2 and the second wire end connector assembly 2' to the through connector 1 or disassembling from the through connector 1 can be improved, and the purpose of the present invention can be achieved.

However, the above-mentioned embodiments are merely examples of the present invention, and the present invention is not limited to the embodiments, but is intended to cover modifications and equivalent arrangements included within the scope of the appended claims and their equivalents.

Claims

1. An electrical connection device, comprising:

the through type connector comprises a shell and a plurality of pins penetrating through the shell, wherein the shell is provided with a first cavity and a second cavity, the first cavity is provided with a first independent slot and a second independent slot, and two opposite ends of each pin are respectively positioned in the first cavity and the second cavity;

the first wire end connector is arranged to be independently inserted into the first independent slot of the first cavity and comprises a first insulating shell, a first terminal position assurance member arranged on the first insulating shell, a plurality of first terminals arranged on the first insulating shell and respectively electrically connected with a plurality of corresponding pins, and a plurality of first wires respectively connected with the plurality of first terminals; and

The second wire end connector is arranged to be independently inserted into the second independent slot of the first cavity and comprises a second insulating shell, a second terminal position guaranteeing component arranged on the second insulating shell, a plurality of second terminals arranged on the second insulating shell and electrically connected with the corresponding plurality of contact pins respectively, and a plurality of second wires connected with the second terminals respectively.

2. The electrical connection device as claimed in claim 1, wherein the outer surface of the housing is concavely formed with at least one ring groove, and the through-type connector further comprises at least one ring-shaped sealing ring disposed in the ring groove.

3. The electrical connection device as claimed in claim 1, wherein the through connector is configured to be disposed through a panel, the panel is formed with a through hole for the housing to pass through, the through connector further comprises a mounting plate formed on an outer surface of the housing and abutting against the panel, the mounting plate is formed with a mounting hole for a fastener to pass through so that the fastener secures the mounting plate to the panel.

4. The electrical connection device as claimed in claim 3, wherein the pass-through connector further comprises at least one ring-shaped sealing ring disposed on the housing, the ring-shaped sealing ring being configured to close a gap between the housing and the panel.

5. The electrical connection device as claimed in claim 3, wherein the through connector further comprises a bushing disposed in the mounting hole, the bushing being configured to be penetrated by the fastener.

6. The electrical connection device of claim 2, wherein the pass-through connector further comprises a sealant encapsulated within at least one of the first cavity and the second cavity, the sealant closing gaps between the housing and the plurality of pins.

7. The electrical connection device as claimed in claim 2, wherein the outer surface of the housing is concavely formed with two ring grooves, and the pass-through connector comprises two ring seals respectively provided to a plurality of the ring grooves.

8. The electrical connection device as claimed in claim 1, wherein the housing is formed with two slots respectively communicating with the first independent slot and the second independent slot, the first insulating housing and the second insulating housing each have an elastic latch arm having a latch block for latching in the corresponding slot.

9. The electrical connection device as claimed in claim 8, wherein the elastic latch arm further has an unlocking block exposed out of the housing, the unlocking block is used for being pressed to bend the elastic latch arm to enable the latch to move away from the corresponding slot, and the unlocking block is also used for being pulled to drive the first wire end connector to move away from the first independent slot or drive the second wire end connector to move away from the second independent slot.

10. The electrical connection device as claimed in claim 1, wherein the first and second terminal position assurance members each have a two-stage snap-fit structure by which the first terminal position assurance member is selectively positionable in a pre-snap-fit position and a final-snap-fit position when moved in a first direction relative to the first insulating housing, and the second terminal position assurance member is selectively positionable in a pre-snap-fit position and a final-snap-fit position by which the second terminal position assurance member is selectively positionable in the two-stage snap-fit position when moved in the first direction relative to the second insulating housing.

11. The electrical connection device as claimed in claim 10, wherein the two-part snap-fit structure comprises two oppositely disposed resilient snap arms, each of the resilient snap arms extending in the first direction.

12. The electrical connection device as claimed in claim 11, wherein the first and second insulating cases each have two oppositely disposed first stoppers and two oppositely disposed second stoppers, each first stopper being spaced apart from the corresponding second stopper along the first direction, each elastic latching arm having a first clasp and a second clasp spaced apart along the first direction, the first and second terminal position assurance members being positioned in the pre-latching position when the first clasp of each elastic latching arm of the first and second terminal position assurance members is snapped into the corresponding first stopper, the first and second terminal position assurance members being positioned in the final latching position when the second clasp of each elastic latching arm of the first and second terminal position assurance members is snapped into the corresponding second stopper.

13. The electrical connection device as claimed in claim 11, wherein the first and second insulating housings each have two pairs of oppositely disposed rail sets, each pair of rail sets having two spaced apart rails, each of the resilient snap arms having two sliding bars slidably connected to a corresponding plurality of the rails along the first direction.

14. The electrical connection device as claimed in claim 11 wherein each of the resilient snap arms has a plurality of barbs aligned in the first direction.

15. The electrical connection device as claimed in claim 10, wherein each of the first and second insulating cases has a plurality of stoppers, each of the stoppers has two oppositely disposed elastic cantilevers, each of the first and second insulating cases is formed with a passage having a gap between the plurality of elastic cantilevers of each of the stoppers, each of the elastic cantilevers is for stopping the corresponding first or second terminal, each of the first and second terminal position assurance members has a blocking plate that does not protrude into the corresponding gap when the first and second terminal position assurance members are positioned in the pre-fastening position, and that protrudes into the corresponding gap and blocks and stops the corresponding plurality of elastic cantilevers when the first and second terminal position assurance members are positioned in the final fastening position.

16. The electrical connection device of claim 1, wherein the shape of the first individual socket is different from the shape of the second individual socket, the shape of the first wire end connector is different from the shape of the second wire end connector, the shape of the first wire end connector mates with the shape of the first individual socket, and the shape of the second wire end connector mates with the shape of the second individual socket.

17. The electrical connection device as recited in claim 16, wherein the first and second independent slots each have a first channel portion extending in a first direction, the first channel portion of the first independent slot and the first channel portion of the second independent slot being spaced apart from each other in a second direction perpendicular to the first direction, the first and second insulating shells each having a first slider extending in the first direction, the first slider of the first insulating shell being positioned to correspond to the first channel portion of the first independent slot, the first slider of the first insulating shell being slidably connected to the first channel portion of the first independent slot, the first slider of the second insulating shell being positioned to correspond to the first channel portion of the second independent slot.

18. The electrical connection device as recited in claim 17, wherein the first and second independent slots each further have two second guide groove portions spaced apart along the second direction, each of the second guide groove portions extending along the first direction, the first and second guide groove portions being spaced apart along a third direction perpendicular to the first direction and the second direction, the first and second insulating housings each having two second sliders, the positions of the second sliders of the first insulating housing corresponding to the positions of the second guide groove portions of the first independent slot, the second sliders of the first insulating housing slidably connected to the second guide groove portions of the first independent slot, respectively, the positions of the second sliders of the second insulating housing corresponding to the positions of the second guide groove portions of the second independent slot, respectively, the second sliders of the second insulating housing slidably connected to the second independent slot.

19. An electrical connection device, comprising:

a through connector formed with a first independent slot and a second independent slot;

The first wire end connector is arranged to be independently inserted into the first independent slot and is electrically connected with the through connector; and

And the second line end connector is arranged to be independently inserted into the second independent slot and is electrically connected with the through connector.

20. The electrical connection device as recited in claim 19, wherein the shape of the first individual slot is different from the shape of the second individual slot, the shape of the first wire end connector is different from the shape of the second wire end connector, the shape of the first wire end connector mates with the shape of the first individual slot, and the shape of the second wire end connector mates with the shape of the second individual slot.